204936091 has 2 divisors, whose sum is σ = 204936092. Its totient is φ = 204936090.

The previous prime is 204936041. The next prime is 204936097. The reversal of 204936091 is 190639402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204936091 - 2⁹ = 204935579 is a prime.

It is a super-3 number, since 3×204936091³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (204936097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102468045 + 102468046.

It is an arithmetic number, because the mean of its divisors is an integer number (102468046).

Almost surely, 2^204936091 is an apocalyptic number.

204936091 is a deficient number, since it is larger than the sum of its proper divisors (1).

204936091 is an equidigital number, since it uses as much as digits as its factorization.

204936091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 204936091 is about 14315.5890902191. The cubic root of 204936091 is about 589.5755742925.

The spelling of 204936091 in words is "two hundred four million, nine hundred thirty-six thousand, ninety-one".